Thanks for the sugestions, I will try it.
But from my previous attempt with a USB3-stick of 16GB I also got "0"Kb from this device.
I will try now combining it with the powercycle.
greetings Aufried
Aufried Lenferink
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Van: Paolo_Marani wd@discoursemail.com
Verzonden: maandag 31 oktober 2016 15:28
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Onderwerp: [WD Community] [Cloud Storage/My Cloud] MyCloud 4TB - Cant recognize external USB3.0 HDD
[https://avatars.discourse.org/v2/letter/p/f08c70/45.png] Paolo_Maranihttps://community.wd.com/users/paolo_marani
October 31
I have FINALLY resolved the puzzle of broken USB3.0 connection on MyCloud.
What i have learned:
1-MyCloud is based on Debian Linux, and support for USB3.0 is weak. If the USB driver go crazy, a simple reboot wont be enough… you must turn off the device, powercycle it for a few seconds, then connect the power again, wait for a full initialization to complete, and only THEN attempt to reconnect the problematic USB3.0 device. Otherwise it wont work.
2-It seem that the device have sort of “memory” on “last seen” device connected, so if the USB3.0 device is reported al “0Kb free” even if it has plenty of space, you must “remove” that memory, otherwise even after a power recycle the device will still mount the device wrongly.
3-The proven way to clear that sort of device memory is to do the following:
Obtain one or more USB3.0 data key (I have used a travelstar 16GB USB3) and insert it back on USB3 port after a powercycle.
If the key is properly recognized (and mounted), eject the key using Web UI.
Repeat the mount/unmount cycle several time with different devices (my earlier working attempts were of 2 cycle using 2 different brand datakeys)
Now, most probably the internal cache entries for “last-seen” usb3 device is cleared, you can attach the external HDD to the USB3.0 port and… to my big surprise… it finally MOUNT THE DEVICE reporting the proper disk space. Also SAFEPOINTS now works.
In a nutshell, powercycle the device and try to mount some other USB3.0 enabled peripherals to purge the corrupted “last-seen” device entries, this will prepare the device for properly recognize throublesome HDDs.
I still believe that the MyClouud need a definitive firmware patch to make the USB3.0 port reliable, but as far as i can finally mount my backup hdd, i’m happy with it now.
Hope this helps, Paolo
Visit Topichttps://community.wd.com/t/mycloud-4tb-cant-recognize-external-usb3-0-hdd/181050/31 or reply to this email to respond.
In Reply To
[https://avatars.discourse.org/v2/letter/a/a3d4f5/45.png] anfriedhttps://community.wd.com/users/anfried
October 25
Dear Bennor, thanks a lot for your help. I wil try this asap. Verstuurd vanaf mijn iPhone
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